Improvement in earth-auger-shaft couplings



UNITED STATES PATENT OFFICE.

WILLIAM W. JILZ, OF ST. LOUIS, MISSOURI.

IMPROVEMENT IN EARTH-AUGER-SHAFT COUPLINGS.

Specification forming part of Letters Patent N0. 146,257, dated January6, 1874; application filed July 17, 1873.

To all whom it may concern Be it known that I, WILLIAM W. JILZ, of St.Louis, in the county of St. Louis and in the State of Missouri, haveinvented certain new and useful Improvements in Coupling for Well-AugerShafts and do hereby declare that the following is a full, clear, andexact description thereof, reference being had to the accompanyingdrawings, and to the letters of reference marked thereon7 making a partof this specification.

The nature of my invention consists in the construction and arrangementof a self-coupler for shafts for well-angers, as will be hereinaftermore fully set forth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawing, in which-Figure l is a longitudinal section of my invention, and Fig. 2 shows theparts of the coupling detached.

A represents a square bar, formed on, or welded, or otherwise attachedto the lower end of a section of a well-auger shaft. On one side, at thelower end of the bar A, is a projection or hook, B, and the oppositecorner c on the other side is cut away or beveled, as shown. On theupper end of the adjoining shaft-section Ais formed or attached a squaresocket, C, in the front side of which, at the bottom, is an aperture, b,large enough to allow the hook or projection B of the bar A to enter thesame.- In the rear side of the socket G is a beveled oset, d, as shownin Fig. l. D represents a slotted slide, attached to the rear side ofthe bar A by means of screws e e passing through the slots in the slide.This slide,

by its own gravity, falls down as far as the slots in the same willpermit. When the upper section is being lowered in order to be coupled,the end of the slide strikes the socket C, and remains stationary untilthe bar A goes down far enough into the socket to cause the heel a tostrike the offset d. When this occurs, the bar A is thrown over to thefront side, and the hook B enters the hole b, and thus leaves room forthe slide D to fall down into its place of its own accord. It willreadily be seen that the shafting cannot become uncoupled unless theshafting is raised far enough to allow the slide to be raised by itshandle E. At the lower end of the socket G is a projecting horn, Gr, torest on the lever and hold the auger from falling down into the well,while the shafting is being coupled together to go down or uncoupled incoming out of the well.

Having thus fully described my invention,

substantially as and for the purposes herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this30th day of J une, 1873.

WILLIAM WHEETEN JILZ.

Witnesses:

C. G. HARTMAN, EDMUND D. SCHREINER.

